Feat: add exosuit strafe ability (#691)

1.У мехов теперь есть новая механика передвижения - Стрейф, суть
заключается в блокировании стороны передвижения (Ходьба спиной или
боком)
Данная механика замедляет меха в 2 раза, даёт возможность двигаться без
разворота и стрелять в направлении взгляда. (Условно, можно отсупать
задом, выступать из укрытия боком). Это фича лишь для паучьих лап, ибо
УВЫ, мир не готов к стрейфам для всех лап.
2. Теперь внешние спрайты модулей меняются, в зависимости от состояния
POWER меха.

code/modules/mechs/components/legs.dm

@@ -7,6 +7,8 @@
 	var/obj/item/robot_parts/robot_component/actuator/motivator
 	power_use = 50
 	var/max_fall_damage = 30
+	var/can_strafe = FALSE
+	var/good_in_strafe = FALSE //Влияет на эффективность стрейфа, используйте когда мир будет к нему готов.
 
 /obj/item/mech_component/propulsion/Destroy()
 	QDEL_NULL(motivator)
@@ -60,4 +62,4 @@
 	if(max_fall_damage > 0)
 		var/mob/living/exosuit/E = loc
 		if(istype(E)) //route it through exosuit for proper handling
-			E.apply_damage(rand(0, max_fall_damage), BRUTE, BP_R_LEG) //Any leg is good, will damage us correctly
+			E.apply_damage(rand(0, max_fall_damage), BRUTE, BP_R_LEG) //Any leg is good, will damage us correctly

code/modules/mechs/mech.dm

@@ -214,12 +214,13 @@
 	if(.)
 		update_pilots()
 
-/mob/living/exosuit/proc/toggle_power(var/mob/user)
+/mob/living/exosuit/proc/toggle_power(var/mob/user) //Отвечает за энергообеспечение меха, обновляет спрайты меха и его модулей при изменении питания
 	if(power == MECH_POWER_TRANSITION)
 		to_chat(user, SPAN_NOTICE("Power transition in progress. Please wait."))
 	else if(power == MECH_POWER_ON) //Turning it off is instant
 		playsound(src, 'sound/mecha/mech-shutdown.ogg', 100, 0)
 		power = MECH_POWER_OFF
+		update_icon()
 	else if(get_cell(TRUE))
 		//Start power up sequence
 		power = MECH_POWER_TRANSITION
@@ -230,6 +231,7 @@
 		else
 			to_chat(user, SPAN_WARNING("You abort the powerup sequence."))
 			power = MECH_POWER_OFF
+		update_icon()
 		hud_power_control?.queue_icon_update()
 	else
 		to_chat(user, SPAN_WARNING("Error: No power cell was detected."))

code/modules/mechs/mech_icon.dm

@@ -48,8 +48,11 @@ proc/get_mech_images(var/list/components = list(), var/overlay_layer = FLOAT_LAY
 		var/obj/item/mech_equipment/hardpoint_object = hardpoints[hardpoint]
 		if(hardpoint_object)
 			var/use_icon_state = "[hardpoint_object.icon_state]_[hardpoint]"
-			if(use_icon_state in GLOB.mech_weapon_overlays)
-				new_overlays += get_mech_image(null, use_icon_state, 'icons/mecha/mech_weapon_overlays.dmi', null, hardpoint_object.mech_layer )
+			if(power == MECH_POWER_ON)
+				if(use_icon_state in GLOB.mech_weapon_overlays)
+					new_overlays += get_mech_image(null, use_icon_state, 'icons/mecha/mech_weapon_overlays.dmi', null, hardpoint_object.mech_layer )
+			else
+				new_overlays += get_mech_image(null, use_icon_state, 'icons/mecha/mech_weapon_overlays_off.dmi', null, hardpoint_object.mech_layer )
 	overlays = new_overlays
 
 /mob/living/exosuit/proc/update_pilots(var/update_overlays = TRUE)
@@ -76,4 +79,4 @@ proc/get_mech_images(var/list/components = list(), var/overlay_layer = FLOAT_LAY
 			overlays += pilot_overlays
 
 /mob/living/exosuit/regenerate_icons()
-	return
+	return

code/modules/mechs/mech_movement.dm

@@ -12,7 +12,7 @@
 		playsound(src.loc, mech_step_sound, 40, 1)
 
 /mob/living/exosuit/can_ztravel()
-	if(Allow_Spacemove()) //Handle here 
+	if(Allow_Spacemove()) //Handle here
 		return TRUE
 
 /mob/living/exosuit/Allow_Spacemove(check_drift)
@@ -43,7 +43,7 @@
 
 /mob/living/exosuit/can_float()
 	return FALSE //Nope
-	
+
 /datum/movement_handler/mob/delay/exosuit
 	expected_host_type = /mob/living/exosuit
 
@@ -115,16 +115,43 @@
 		var/txt_dir = direction & UP ? "upwards" : "downwards"
 		exosuit.visible_message(SPAN_NOTICE("\The [exosuit] moves [txt_dir]."))
 
+//STRAFE
+	if(exosuit.legs.can_strafe)
+		for(var/thing in exosuit.pilots) //Для всех пилотов внутри
+			var/mob/pilot = thing
+			if(pilot && pilot.client)
+				for(var/key in pilot.client.keys_held)
+					if (key == "Space")
+						var/move_speed = exosuit.legs.move_delay
+						if(!exosuit.legs.good_in_strafe)
+							move_speed = move_speed * 2.5
+						if(direction == NORTHWEST || direction == NORTHEAST || direction == SOUTHWEST || direction == SOUTHEAST)
+							move_speed = sqrt((move_speed*move_speed) + (move_speed * move_speed))
+						if(move_speed > 12)
+							move_speed = 12
+						exosuit.SetMoveCooldown(exosuit.legs ? move_speed : 3)
+						var/turf/target_loc = get_step(exosuit, direction)
+						if(target_loc && exosuit.legs && exosuit.legs.can_move_on(exosuit.loc, target_loc) && exosuit.MayEnterTurf(target_loc))
+							exosuit.Move(target_loc)
+						return MOVEMENT_HANDLED
+//STRAFE
+
+//TURN
 	if(exosuit.dir != moving_dir && !(direction & (UP|DOWN)))
 		playsound(exosuit.loc, exosuit.mech_turn_sound, 40,1)
 		exosuit.set_dir(moving_dir)
 		exosuit.SetMoveCooldown(exosuit.legs.turn_delay)
+//TURN
+
+//MOVE
 	else
 		exosuit.SetMoveCooldown(exosuit.legs ? exosuit.legs.move_delay : 3)
 		var/turf/target_loc = get_step(exosuit, direction)
 		if(target_loc && exosuit.legs && exosuit.legs.can_move_on(exosuit.loc, target_loc) && exosuit.MayEnterTurf(target_loc))
 			exosuit.Move(target_loc)
 	return MOVEMENT_HANDLED
+//MOVE
+
 /datum/movement_handler/mob/space/exosuit
 	expected_host_type = /mob/living/exosuit
 
@@ -140,7 +167,7 @@
 			return MOVEMENT_HANDLED
 		else
 			mob.inertia_dir = 0 //If not then we can reset inertia and move
-	else 
+	else
 		mob.anchored = TRUE
 		mob.inertia_dir = 0 //Reset inertia values as we are not going to be treated as floating
 

code/modules/mechs/premade/misc.dm

@@ -7,6 +7,7 @@
 	move_delay = 4
 	turn_delay = 1
 	power_use = 25
+	can_strafe = TRUE
 
 /obj/item/mech_component/propulsion/tracks
 	name = "tracks"